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1966 COLT AR-15 SP1. .223 REMINGTON Guns International #: 102229575 Seller's Inventory #: 52 Category: Colt Rifles - AR-15 - Colt Rifles Seller's Information When emailing or calling sellers direct, please mention that you saw their listing on GunsInternational.com Seller: PhantomF4 Member Since: 8/11/18 First Name: Leo Last Name: Leiderman State: Arizona Zip: 85262 Country: United States Phone: (949) 306-2009 Number of Active Listings: 0 Total Number of Listings: 36 Seller: Private Seller Return Policy: 3 day inspection and return policy on used guns. Buyer pays actual cost of shipping Payment Types Accepted: Money order, USPS certified check Description: SOLD PENDING FUNDS.This is an outstanding "third year" 1966 production Colt AR-15 SP1 semi-automatic rifle. It has the early style upper receiver with no provisions for a forward assist and the correct early Colt "triangle" proof mark on the upper receiver. The lower receiver has the Colt four line markings with the four digit serial number "SER SP 06778" indicating mid production in 1966. This was the the third full year of Colt AR 15 production. It is fitted with the early original Colt marked parts such as the original non-chrome lined barrel with and  "12" marking. The right side of the barrel beneath the sight post rings is stamped with the proof "M" and triangle Colt stamping. The barrel is fitted with the early three-prong flash hider with correct ' checkered ' lock washer. The bore is beautiful and shiny. It has the early commercial Colt bolt carrier that lacks the notching on the side later added for the forward assist.  The bolt is also the early Colt version that is marked "M" and "P". It retains its original internal parts with the early style selector switch that has the small machined hole on each end of the switch. It still retains its original first generation (and very rare) old style, large head, two-piece 'Edgewater' recoil buffer. It is also fitted with it original slimmer black plastic pistol grip, early triangular handguards (early unmarked versions lacking the "R" and "L" on the inner aluminum shields.) Features the early style buttstock. The buttstock is indeed, the early version that lacks any provisions for the internal storage compartment, that is correctly fitted with a solid rubber/plastic buttplate with no provisions for the later trap door. It also has the rubber coated swinging sling swivel. The ejection port cover is of the earlier style having the roll pin holding in the longer spring and detent. The pin housing was longer as well. This was later changed to a shorter 'crimp' style securing method. Also note on these earlier rifles the upper receiver cast was smoother and lighter with deeper lines. Most notable under the rear sight recess in the handle area.  NO issues at all and this rifle is 100% correct and all original as issued in 1966! Nothing has been altered, refinished or replaced EVER! SOLD Curio/Relic: Yes Rifle Caliber: .223 Remington Manufacturer: Colt Model: AR15 SP1 Serial Number: SP06778 Condition: excellent Metal Condition: excellent Bore Condition: excellent